1-5
EonStor DS 3000 Series Hardware Manual
1.2.2 Rear panel
2U systems
DS 3012U/DS 3024B
3U/4U systems
Number
Part
Description
11
Controller A
This module is the main system component the contains the main
circuit board with various interfaces.
11
Controller B or
dummy cage
This part contains the second controller for dual-controller
expansion. For single-controller expansion, this contains a dummy
cage.
11
PSU and cooling
modules
These hot-swappable PSUs provide power to the system and each
PSU has a cooling module.
DS 3016U/DS 3024U
WARNING!
• DO NOT remove the redundant components.
• DO NOT remove the redundant components without a replacement on hand.